85506

Appears in sequences

• Number of permutations of length n which avoid the patterns 231, 1432, 4123.at n=17A116734
• Number of strictly increasing arrangements of 7 nonzero numbers in -(n+5)..(n+5) with sum zero.at n=11A188126
• Number of tatami tilings of an 8 X n grid (with monomers allowed).at n=15A192094
• Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 00100101 or 01010101.at n=5A261257
• Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 00100101 or 01010101.at n=5A261263
• Row 3 of A328464: a(n) = A276156(8n - 4) / 6.at n=22A328466